the new MyKey feature is slated to first become standard equipment in the 2010 Coupe. The chip limits top speed to 80 miles per hour and sounds speed-alert chimes at 45, 55 and 65 mph.

The chip also enables parents to limit the volume of the radio to 44% of total volume and won't allow the traction control system to be deactivated.

Ford unveiled the new chip just months radio frequency identification technology in its pickup trucks and vans to tag and track contractor tools, construction equipment and materials.

The RFID technology became an option in trucks, F-Series Super Duty trucks and E-Series vans last month.

The new key also offers a more persistent seat-belt reminder than typical Ford automobiles, which ring a six-second chime once per minute for five minutes if a seat belt is not buckled. The MyKey chime will continue at regular intervals, and the audio system is muted until the seat belt is fastened.